Miroslav Novak created ARTEMIS-541:
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Summary: Optimize live/backup replication after failback
Key: ARTEMIS-541
URL: https://issues.apache.org/jira/browse/ARTEMIS-541
Project: ActiveMQ Artemis
Issue Type: Bug
Components: Broker
Affects Versions: 1.3.0
Reporter: Miroslav Novak
Currently if there is master/slave pair configured using replicated journal
then after each failback when master is starting, it copies the whole journal
directory from slave.
This seems to ineffective as master might have significant part of backups
journal before it failed.
If only differences between journals would be transfered then it would be
effective especially in case when failback is completed and master starts to
synchronize the whole journal back to slave. It copies the whole journal to
backup again which is almost the same. This would greatly speed up
synchronization of slave and safe network bandwidth.
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